Add SDK v1.0.0

source/Core/include/core/Greeting.hpp

@@ -0,0 +1,20 @@
+#pragma once
+
+#include <string>
+
+/// @file
+/// Tiny "core" module shared by every executable module in this demo.
+/// Registered as a library module in source/Core/CMakeLists.txt -- see
+/// that file for how its build type (STATIC/SHARED) and its fmt
+/// dependency are declared. The farewell half is a piece of it kept in
+/// its own objects module, source/CoreFarewell (core/Farewell.hpp).
+namespace demo::core
+{
+
+	/// Builds a greeting for @p name.
+	///
+	/// @param name  the person (or thing) being greeted.
+	/// @return a formatted greeting string, e.g. "Hello, Ale! (from demo_core)".
+	std::string makeGreeting(const std::string& name);
+
+}